README.md
GrblMainboard

A new Solution with Grbl Firmware to use cnc mills or 3d printers

created by Christoph Kielhorn (Godsplan), Jan-Erik Zimmermann and xpix

The GrblMainboard includes the following features:


ATMega328u (DIL Package)
USB Connection using cheap USB-FTDI-Breakouts from Ebay
Opto-Couplers for USB Connection
ICSP-Connector for flashing the firmware
GRBL Firmware (v0.8) and GRBL Pinout
External Buttons for spindle, reset, etc...
Support for four Pololu A4988 or Pololu DRV8825 Modules
Supports dual-Y motion
Supports cooling fan


v2.1


created schema files
created .brd